/ Dictionary / Index A anaerobe: Meaning and Definition of Find definitions for: an•aer•obe Pronunciation: (an'u-rōb", an-âr'ōb), [key] — n. an organism, esp. a bacterium, that does not require air or free oxygen to live (opposed to aerobe). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: anaerobe (Thesaurus) anaemic anaerobic Related Content Daily Word Quiz: agitated Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language